An enormous and lavish Gothic church in Czechia.

A church of bones, decorated with 40,000 human skeletons.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

The partially submerged ruins of a white marble quarry used in ancient Greece for over 1,200 years.

Historic slum of Tartu.

Once a year, local students "clean" this statue with a champagne shower.

This misspelled graffiti reappears every time it is removed.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

Pigduck of Turku.

The ancient latrines of the Greeks, in all their public glory.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

A charming beach town in Turkey captures all the colors of the rainbow.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This sculpture honors the man who was known as the "Righteous Among the Nations."

Electrical curiosity museum housed in an old transformer station.

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

The metal leaves on this tree are engraved with the names of Holocaust victims.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

A diminutive statue that was inspired by the sculptor's own daughter.

This statue honors one of Budapest's most beloved literary characters.

This easily overlooked memorial immortalizes the scars from the 1956 Hungarian Revolution.

An incredibly durable timepiece glows beneath shoppers' feet.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.